Carline and method of manufacture.



PATENTED NOV. 20, 1906.

E. I. DODDS.

GARLINE AND METHOD OF MANUFACTURE.

APPLICATION FILED MAY 17.1905- nying drawings,

, formed d1emembers,

. while its flanges are at 1nto a common ETHAN 1. nouns, or

PULLLWIAN, ILLINOIS, ASSIGNOR TO THE PULLMAN COMPANY, OF CHICAGO,ILLINOIS, A CORPORATION OF ILLINOIS.

CARLINE AND METHOD OF MANUFACTURE- No. 836,371. Specification of LettersPatent.

I'atented Nov. 20, 1906.

Application filed May 1'], 1906. Serial No. 260,810.

To all whom it may concern Be it known thatI, ETHAN I. Dorms, a

citizen of the United States, residing. at Pull-' State of Illi- Iuseful following is. a

an pertains more particularly tothat classofi carlines which are made ofpressed steel.

:The objectof'myinvention is to provide an improved carline combiningthe: maxi mum of strength and rigidit "with a minimum of cost andincrease manufacture.

Another object of the invention is to provide a carline which-canreadilybe made by pressing the same from a commercialjorm of;

expense ofmanufacture of t is A carline constructed in accordance-,with'rolled beam, such as a channel-beam,

illustrated;i 1 aicgonil'pdg Where1n--'-' end view of my invention isFigure l is an channel-beam from which my improved carli'ne ispreferl 2'is a side elevational ably formed, Fi view'of a longitu carline. Fig. 3is a Fig. 4 is a cross-sectlonal al half of my iin roved larged scale,at the longitudinal center-ofthef carline; and Fig. 5 is on a reducedscale, ofthe'cornplete'carhne. In constructing. my improved referablystart eam A of a suitable length to extend from plate to plate ofthecar. This beam is subected to; compression ressed upwardlyto formathe same time drawn horizontal f-plane on either side ofsaidoutwardly-bent body portion. In order to secure uisite for the upperedge of t e carline, the displacement of the web isgreatest at-thecenter, where consequently the body has its highest and narrowestformation, as shown at B, the body tapering with a; gradual decrease inheight and-increase in width from the center to the ends, hedownwardly-sloping u per surface of the body being re resente y-C andthe warped si es by D. llhe two sides of the channel-beam are pressed dthe Methodsor by simply Either or simplicity of I ;.de'scrib ed form maytop plan view-of ig. 2'.

' view, on an enj- 'to forma'hollow bod t 'a slde elevational ,view,tdlie in a common p pressed-up carhne I 1 with a section of channelk upits web along between su1tably whereby'its web is ollow body,

the low, slo ingform reqinto the common horizontal plane of the lowerhorizontal edge of the' outwardlypressed body, thus forminglateralflanges E, that secure the necessary lateral rigidity of the member.

The upper surface C of the body member is preferably provided atintervals with seats for the purlins, which seats may be formed bycutting out the metal, as indicated at F, depressing it, as indicated atG. both forms of seats may be emplo ed in the same structure.

he flanges E'may be formed with suitable bolt-receiving holes H oppositethe pu'rlinseats to receive bolts umtlng the purlins to the carlines.

By the use of suitable dies a carline of the be readily pressed-by asingle operation from a commercially-rolled channel-beam, thus reducinthe labor and element of .a

car structure to a minimum.

forda rigid memberwell'adapted' to resist transverse strains in anydirection. Iclairn-" 1. ,The method of manufacturing a carline,

from a channel-bar which consists in, ressmg v At the same time tliedisposition of the metal resulting fromthe pressing operation is suchas'to atup itsweb, along its lon itudinal me ian-line e flanges'beingbent 7 ans on either side of the web, substantially as described. 2. Themethod of manufacturing a carline. from a channel-bar which consists in(p its longitudinal me to form a hollow body ofraduallydecreasing'hei'ght and increasing width from its center to bothends, substantially as described. 3., The method of manufacturing acarline from a channel-bar which consists in (pressing up itsweb alongits longitudinal me ian line to form a hollow body'ofgradually-decreasing'height and increasing width from its center to bothends, and bending the flanges to lie in a common lane on either side ofthe lower edge of sai body, scribed.

substantially as de- '4. The method of manufacturing a carlinefrom achannel-bar,

line to form a hollow bo y of decreasingheight from its center to bothends and bending the flanges of said channel-bar to lie in a I whichconsists in press mg up its web along its lon 'tudinal median commonplane on either side of the lower might; and increasing width from itscenter edgeol' said body, substantially as described. to either end,said body having lateral flanges 10 A pressed-steel carline having a,hollow lylngln a common plane on either side of its body, said bodybelng of gradually-deoreaslower edge, substantially as described.

5 mg might and lncreasing width from its con- ETHAN I. DODDS.

tor to both ends, substantially as described. v 4 Witnesses:

6. A pressed-steel earlino having a hollow SAMUEL N. POND,

body said body being of gradually-decreasing FREDERICK C. GOOD-WIN.

